Clinical isolates of fimbriated and nonfimbriated Klebsiella pneumoniae were examined for the ability to adhere to hamster tracheal cells cultured in vitro. Fimbriated-phase K. pneumoniae adhered preferentially to ciliated cells, whereas nonfimbriated-phase organisms were not adherent. The adherence was inhibited by D-mannose but not D-glucose, suggesting that type 1 fimbriae serve as the adhesin in the attachment process.
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Fader et al. (1988) studied this question.
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